Super73 e-Bikes require their original battery be connected to the controller in order to add a secondary (after market) battery to your setup. POWERFUL LITHIUM has developed a cable that quickly and easily allows you to add a second battery with an XT90 connector (after market battery) to your Super73 RX, R, or S2, to extend your range.
Note: Both your stock Super73 battery and your secondary battery (after market battery) must be completely charged to full before connecting them to your bike for the first time.
